Home / 813,868.52-1,122,909.48-641,251.34

Finding the Fourth Proportional to 813,868.52, 1,122,909.48 and 641,251.34

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Solution

The fourth proportional to 813,868.52, 1,122,909.48 and 641,251.34 is: 884,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,868.52 : 1,122,909.48 = 641,251.34 : x
  2. Step 2: Convert to fraction form
    813,868.52/1,122,909.48 = 641,251.34/x
  3. Step 3: Cross multiply
    813,868.52x = 1,122,909.48 × 641,251.34
  4. Step 4: Simplify right side
    813,868.52x = 720,067,208,748.70
  5. Step 5: Solve for x
    x = 720,067,208,748.70/813,868.52
  6. Step 6: Final answer
    x = 884,746.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.